Builder mechanism for yarn spinning or winding machines



lock. 4. 1927.

H. H BURDETT BUILDER macm'mism FOR- YARN SPINNING ,oawmnme mcnnmsFiled-Oct. 21,1926 2 Sheetg-Shet 1.

. I/W/VI/E/VZ'ORJ ATTORNEY Patented Get. 4, 19 27.

stairs; at

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HORACE n, IBURDETT; or HOPEDALE, MASSACHUSETTS, lemme T0 DRAPER 001ironnrrron, or i-rornnann, messnonosnr'rs, A oonromrrron oral-Ame.

BUILDER MECHANISM non YARN SPINNING on XVINDI'EG'MACIIINES:

Application filed October 21, 1926. Seria1.1f I0.143,1l9.l

This invention relates to-builder mechanisms *for yarn winding-orspinning machines and is more particularly directed'to buildermechanisms wherein a bunch builder. at-

tachment'is employed toplace upon the-fillingcarriers or bobbins areserve supply of It is now the commonpractice to provide fillingcarriers or bobbins with a reserve supply of filling, sometimes, termeda. bunch, to insure that a complete length of. filling be laidintheshedonithe last pick.

of the shuttle before replenishment.

The present invention is a fur her develop- "ment-of the buildermechanisms shown and.

ing mechanism-be placed in operative posi tron to wind the bunch whenthe machine is first started and. on completion of the bunch to pass outof operative position in order that the regular service traverse mayberesumed for completion of the wind.

During the winding operation, the yarn.

guide or ring-rail is progressively raised, so that on the completion ofthe wind it is at its upper position, and after the full bobbins havebeen dotted and the empty bobbins placed in the machine, it is usual to.wind.

back in order to commence the windings at a point'adjacent the heads ofthe bobbins. in the Burdett- Patent,'No. 1,579,190, means are providedwhich utilize the winding back operation to bring into operativeposition a bunch builder mechanism which, upon completion of the bunch,will automatically go out of operation to permit regular service tocontinue in the completion oi the winds.

Inbuilder mechanisms of the type shown and described in the Burdettpatent above noted, it is desirable that the bunch wind shall commenceatsome predetermined point on'the'successive series or" bobbins or fillingor bunch constitutes waste: when the dc: pleted filling carriers or,bobbins. 3.1165 3% C from the loom, and the knowledge; of Wha suchwaste: shallbe :inany case isimpo r.tant.;

One of;- the E features of the present: inven: tion consists/inprovidingmeans whereby the worm which cooperates .w-ith -;the bunch,building device to, form .the bunch ;.sh.a=11 be? returned; to. a.predetermined rotative; post:

tion automatically when the bunch is completed, withptheresult-thatsuccessive series of bobbins. shall be providedwitlrbmnches,the winds of which,commence atzthe same; part of the bobbin.

The practice insome-mills, owing to-the; character of the spinningorwinding.;ma chine-or its speed of operation or; thev,characcarriers,l.because thejreserve supj lyof yarn .55

ter of yarn employechrequires that the pre determined point at which theworm shall come to. rest whenfmoved out of=buncli building relation withthe bunch building; device shall be capable. of variation, and anotherimportant feature of the presentin, vention, therefore, consists in"providing means whichwill not onlyreturnthe w rm.

to a predetermined position when it goes;

out of actio11, but which shall becapable off varying the predeterminedthe worm is turned. 1 The invention and new combination of parts andnovel features thereof Will bestjloe point to which made clear from thefollowing.descripti n,

andthe accompanying drawings.of one good. form of the invention. v I iIn the drawings: I y M Fig.1 is aperspective' view, of a buildermechanism. containing the present invention, some of the parts beingbroken away;

Fig. 2 is anend viewoftheworm, Fig. 3 is an enlarged sectionon theline.33 of Fig. 1, some of theparts being omit,-

ted for clearness of illustration, and show-- ing more particularly themeans for return ing the worm to the desired. predetermined, rotativeposition when it is inovecl out or bunch building relation with thebunch building device. or disk; 7 h v 4-. is a detail perspective view.otone means for movingthe wormitothe prede-v termined rotativeposition;and. Fig; 5 is a side; elevation of the worm on an enlarged sca'le. y i

In accordance with theillustrated embodiment of the present invention,the builder mechanism is of the general type shown and described in theBurdett Patent, No. 1,579,190, wherein the winding back operation isutilized for positioning parts to cause the worm to move into operativebunch building relation with the bunch building device or disk when thebuilder arm is depressed, but, as will be apparent, the means foreffecting rotative movement of the worm to the desired predeterminedposition may be utilized in other forms of bunch building mechanisms.

The yarn spinning or winding. machine may be of the general'charactershown and described in the Burdett patent last before mentioned, and isnot herein shown because the details thereof form no essential part ofthe present invention andare fully described and shown in the Burdettpatent, to which reference may be had. i

The builder mechanism comprises the usual main builder cam 1 supportedfor rotative movement upon the machine frame and the builder arm 2pivoted at its rear end portion to the machine frame and carrying thefollower or roll 8 adapted to ride upon the peripheral cam portion ofthe main builder cam 1 during the main traverse wind, and such'parts maybe substantially the same as in the Burdett patent above noted. 7

Mounted upon the builder arm 2 is the gear orpinionl, the teeth of whichare enaged by the usual worm 5 secured to the shaft 6 which is itselfmounted in bearings during the upand down movement of the builder arm tooperate the gear 4 which is connected by flexible means to the yarnguide or ring rail. Secured to the gear 4k is the winding drum 9 towhich is connected at. 10 the chain or flexible connection 11 whichextends over the usual guiding means, as indicated in the BurdettPatent, No. 1,579,190, and is secured to the usual segment forcontrolling the movement of the ring rail. These features may all be ofusual construction, and as they are fully shown and described in theBurdett patent, further illustration and description thereof appearsunnecessary.

The builder arm 2 carries a bracket 12 which may be secured to thebuilder arm by means of the bolts13 which pass through openings 14 intheface of the bracket, whereby the bracket itself may be adjusted relativeto the builder arm by means of the adjusting bolts 15, and these'partsmay be substantially the same as in the Burdett patent above mentioned.

,Mounted in bearings 16 extending laterally relative to the builder arm2 is the shaft 17 on which is mounted a finger or arm 18 held inposition on the shaft 17 by means of the end collars 19 and 20. Thefinger or arm 18 is formed with a cam or bevelled surface 21 and isnormally under the influence of a spring 22 which acts to maintain thearm or finger 18 in its upwardly extending position, as indicated inFig. 1. Secured to the face of the drum 9 is a pin 23 which, on windingback engages the bevelled or cam face of the arm or finger l8 and movessaid arm or finger outwardly, and in order to limit the upward orinitial position of the finger or arm 18 a stop 24 is provided to engagea suitable shoulder on the collar 20.

These parts may also be the same as in the Burdett Patent, No.1,579,190, when the bunch builder mechanism is associated with thewinding back devices for throwing the bunch builder mechanism intobunchbuilding relation with the bunch building device.

Extending from the shaft 17 is an arm 25 which bears upon the outer endportion of a worm positioning pin 26 mounted for sliding movement in asleeve 27 carried by the downwardly extending arm 28 which may beappropriately secured to or formed as part of the bracket 12.

Mounted for sliding movement laterally of the builder arm 2 is the worm29 carried by a rod or support 30 which is itself adj ust'ably securedto the bracket 12 by threaded connection with the nut 31. The rod orsupport 30 is provided with a shoulder 32 and the hub portion 33 of theworm has a cooperating shoulder 34 for limiting the outward movement ofthe worm under the actuation of the worm positioning pin 26. These partsmay also be similar to the corresponding parts shown and describedin theBurde'tt patent.

Mounted for cooperation with the worm 2,9 is'a bunch building device 35which, in the present instance of the invention, comprises a diskmounted for rotative movement and actuated from a suitable going part ofthe machine. In the present instance, the bunchbuilding device or disk35 may be secured to the main builder earn 1 as more fully shown anddescribed in the Burdett patent.

From the construction thus far des -ribed and as more fully elucidatedin-the Burdett patent, it will be obvious that during the regularbuilding traverse the follower 3 rides upon the peripheral portion ofthe main builder cam 1 to lay the yarn upon the filling carriers orbobbins by regular traverse, and as the builder arm 2 is actuated, thewinding drum 9 lets back upon the flexible connection with the yarnguide or ring rail through the pick mechanism, as usual in this type ofmachine. When a set of bobbins has been completely filled with arn therin rail or arn uide is at,

y a c to its upper position and the machine stops; whereupon. the yarnguide or ring rail is lowered for dofiing and, of course, the builderarm 2 is lowered. Before: commencing to wind yarn upon the fresh set ofempty filling carriers or bobbins, the ma chine attendant will wind backthat-is, he will turn the shaft 6 to rotate the winding drum 9 to lowerthe ring rail, and, as this is done, the pin 23 acting upon the fingeror arm 18 will cause the worm 29 to move into its outer or bunchbuilding relation with the bunch building device or disk 35, providedthe attendant has not lifted the builder arm so as to bring the outerface of the worm into contact with the adjacent face of the bunchbuilding device or disk. The machine attendant frequently raises'thebuilder arm to more conveniently wind back and in such case the fingeror arm 18 will be movedoutwardly as before, but since the worm cannotmove outwardly into bunch building position at this time, the

spring 21 is placed under tension, so that upon the attendant letting goof the builder arm it will drop to lowerthe worm 29 below the peripheralportion of the bunch'build ing device or disk; whereupon, the wormwill'move to its bunch building position in contact with the periphery of thebunch building device or disk 35, with the result that upon starting towind a; fresh set of bobbins, the bunch building mechanism will firstlay a reserve supply upon the'bobbins,

and finally the worm will be moved laterally out of bunch buildingposition to permit regular service traverse tobe resumed.

As hereinbefore indicated, it is desirable that the worm berotatablypositioned at such times to bring the same point of the I periphery ofthe worm into contact with the bunch building device or disk when theworm is againmoved into bunch building position, and as the practice indifferentmills requires that the predeterminedrotative position of theworm shall be different from what it is in other mills, means forreturning the worm to its predetermined posi tion is rendered variablein accordance with the present invention.

As shown, the worm 29 is provided with a faced recess 36 to receive theworm rotating means which, as shown in thepresent instance, comprises aweight; As indicated in Figs. 3 and 4, the weight is formed as a disk 37having an overweighte'd portion 38 at one side of its axis and-the diskis secured to the worm by appropriate means such, for instance, as thescrew bolts '39. There maybe a number of such securing bolts, with theresult that the weighted disk 37 may-be adjusted rotatably relativeto'the worm and then secured in adjusted position.

The disk 37has a fiangeiportioni lO which.

rests upon the face 41 of the recessed portion ofthe worm, with theresult that the inner. face portion of the disk presentsa substan--tially smooth surface upon whichbearsthe worm positioning pin 26; Thepreferred.

manner'for securing the weighted disk-37 to the worm is shown ascomprisinggthe threaded lugs L2 into thethreads I of which the securingbolts 39 extend, and as the tlireaded recesses in the disks do notextend to the exposed surface thereof, the-worm;po-: sitioning pin bearsupon the substantially exposed portion of smooth surface of the thedisk. I

In the present instance of the in-vention,

theweighted portion 3850f the disk is shown as extendingsubstantiallyhalf way. around the disk, but, obviously, this may be other wise, theessentials in this"respect'beingxtliat.

the worm'be providedwith a-weighted poiztion, where a weight is used, sothat when the worm is moved ou-tof bunch building relation with thebunch building device or building device or disk, the sameiperipheralportion'of the worm will beutilized 'in starting the bunch onsuccessiveseries of bobbins.

As more fully pointed: out-in-the Burdett patent to which attention hasbeen called,

the size of the bunch, that is, the number of windings which constitutethe reserve sup ply or bunch may be varied byadjusting the rod'orsupport 30-which supports the worm, and as the reserve supply or bunchisinitiated at the same peripheral point of the worm,on starting to windsuccessive series of'bobbins or filling carriers it follows that thebunch? on such successive series of.

bobbins will-commence at thesaine point and no As a 'worm is movedlaterally byfthe contain the same'amount of yarn.

bunch building device or disk-'35 by which the 'worm'is rotated duringthe bunch buildingoperation, any sudden disengagement of the wormfromthe bunchbuilding device or diskmight result in a jump of the yarn:

guide or ring rail, and cause yarn-breakage. To obviate this,'the outeror final'end portion of the worm is formed'into'a scroll 43whichgradually approaches the centralportion or axis of the worm, withtheresult that as the worm is moved laterally by'the bunch buildingdevice and, finally presents the scroll thereto, the ring rail will movewith ease and WillllOHtjtUIlP toybr-ing' the follower 3 into contactwith the main builder cam;

The weight 38constitutes a good practical form of means of simplecharacter for insuring rotative movement of the worm into apredeterminedposition wheniit is moved out of bunch building-engagementwith the bunch building device or disk, and by reason of the fact thatit is adjustable to different positions relative to the worm, suchpredetermined point may be varied to suit the particular conditions ofthe mill or the spinning or winding machine in which the bunch buildingdevice is employed.

During the bunch building operation, the peripheral portion of the diskwill ride in t e depressions in the worm and cause rotative movement ofthe latter and also lateral movement during rotation of the worm sothaton completion of the bunch the worm will be moved laterally out of bunchbuilding relation with the disk; whereupon, the weight 38, or other wormactuating means, will return the worm rotatively into a predeterminedposition to commence the'next bunch windings on a series of bobbins atthe same point where the previous windings had commenced.

What is claimed is:

1. In a buildermechanism, the combinationof ,a main builder cam, abuilder arm having a follower for engagement with the mail builder camduring main servicewindings, a rotating bunch builder device, a wormcarried by the builder arm for cooperation with said device in buildingthe bunch and moved by the rotating device out of bunch buildingposition on completion of the bunch, and means acting independently ofthe rotating bunch builder device for rotating the worm into apredetermined rotative position when moved out of engagement with andfree from therotating device.

2. In a builder mechanism, the combination of a main builder cam, abuilder arm having a follower for engagement with the main builder camduring main service windings, a rotating bunch builder device, a wormcarried by the builder. arm for cooperation with said device in buildingthe bunch and moved by the rotating device out of bunch.

building position on completion of the bunch, and means actingindependently of the rotating bunch builder device for effectingrotative movement of the worm in one or the opposite direction into apredetermined position when, not in contact with the rotating device. 7

3. In a builder mechanism, the combination of a main builder cam, abuilder arm having a follower for engagement with the main builder camduring main service windings, a rotating bunch builder device, a wormcarried by the builder arm for cooperation with said device in buildingthe bunch and moved by the rotating device out of bunch buildingposition on completion of the bunch, and a weight connected to the wormfor rotating the worm into a predeteri'nined position when moved frombunch building relation with said rotating device.

4. In a builder mechanism, the combina tion of a main builder cam, abuilder arm, a bunch builder member, a worm carried by the builder armfor cooperation with the disk in building the bunch, and a weight forrelatively turning the worm and bunch builder member into predeterminedrelation when the worm and bunch builder member are disengaged. I

5. In a builder mechanism, the combination of a main builder cam, abuilder arm, a bunch builder disk, a worm carried by the builder arm forcooperation with the disk in building the bunch, means connected withthe worm for turning it into a predetermined position when inovedfrombunch building relation with the disk, and devices for changing theextent of movement of the worm efiected by said means to vary thepredetermined position to which the worm is moved.

6. In a builder mechanism, the combination of the main builder cam, thebuilder arm, a bunch builder disk, means for rotating the disk, a wormcarried by the builder arm for cooperation with the disk in building abunch, a weight for rotating the worm when moved from bunch buildingrelation with the disk,' and means for adjusting the relation of theweight and worm.

7. In a builder mechanism, the combination of the main builder cam, thebuilder arm, a bunch builder device, means for rotating the main buildercam and bunch builder device; a worm carried by the builder arm forcooperation with the bunch builder device in building the bunch andhaving a weighted portion for turning the Worm automatically into apredetermined position when out of bunch building position.

8. In a builder mechanism, the combina tion of the main builder earn,the builder arm,a bunch builder device, means for rotating the mainbuilder cam and bunch builder device, a worm carried by the builder armfor cooperation with the bunch builder device in building the bunch andhaving t.

weighted portion for turning the worm aumeans for adjusting the weightedportion of the worm to vary its rotative position of rest. i l

9. In a builder mechanism for spinning or Winding machines, thecombination of the main builder cam and builder arm, arotary bunchbuilder device, a worm mounted on the builder arm for cooperation withthe bunch builder device, and a weightior rotatively relating the wormand bunch buildor device into a predeti-n'niined position when the wormand bunch builder device are disengaged on completion of the bunch.

. 10. In a builder. mechan sm for spinning or winding machines, thecombination of the vmain builder cam and builder arm, a rotary 5 weightfor automatically turning the Worm into predetermined position Whenmoved from bunch building pos1t1on, and means for by the Worm.

changing the position of the Weight for varying the predeterminedposition assumed In testimony whereof, I have signed my name to thisspecification.

HORACE H BURDETT.

